A new WIP update of GliGli's NullDC-360 (Dreamcast Emulator) for LibXenon-homebrew 360s has been posted:

After a long dev period here's a little update about GliGli's nulldc port, on the last update, the emu was running on interpreter, and GliGli faced a big problem, there is no dynarec for the xbox 360 architecture (PowerPC), so he had to code his own

Currently the port runs at 168mhz ingame for Soul Calibur (DC Cpu speed is 200mhz). The speed is not constant during games, for example you can see on the video that Soul Calibur stage 1 isn't at that emulation speed, but the other stages are.

really great news!! Thanks so much for hard work! Brings back memories i remember freshman year college and my lil studio apt playing nfl2k across 56k dial up modem really loved power stone soul caliber mvc and tokyo racer gosh thanks for returning this to ability to me my dreamcast was stolen grrrr